ANN: cssutils 0.9.6b3
what is it
--
A Python package to parse and build CSS Cascading Style Sheets. (Not a
renderer though!)
about this release
--
0.9.6b3 adds a few features and fixes quite a few bugs.
main changes
+ **FEATURE**: Added parsing support and new profile for details
defined in module Fonts http://www.w3.org/TR/css3-fonts/
+ **FEATURE**: Added ``cssutils.parseStyle(cssText,
encoding='utf-8')`` convienience function
+ **FEATURE** (experimental, request from issue #27): Added
``css.CSSStyleDeclaration.children()`` which is a generator yielding any
known children of a declaration including *all* properties, comments or
CSSUnknownRules.
+ FEATURE: ``CSSStyleDeclaration.insertRule`` also accepts a
``CSSRuleList`` now (same as ``CSSStyleSheet`` which does this for some
time now).
+ FEATURE: Added ``CSSStyleDeclaration.keys()`` method which
analoguous to standard dict returns property names which are set in the
declaration.
- **API CHANGE**: Replaced attribute ``css.Property.parentStyle``
with ``css.Property.parent`` (``parentStyle`` is DEPRECATED now).
+ **BUGFIX**: Improved child and parent node referencing.
+ **BUGFIX**: Parsing of CSSValues with unknown function names with
a specific length of 4 or 7 chars were resulting in a SyntaxErr. Also
parsing of comma separated list of CSS FUNCTION values works now.
+ BUGFIX: Fixed validation problems:
- ``font-family: a b`` (values with spaces in names without
being quoted) are parsed now without emitting an ERROR. These are indeed
valid but discouraged and you should use quotes (more than one space is
compacted to a single space anyway so rather complicated without quotes)
- negative lengths for the ``font-size`` property are now
properly reported as ERRORs
- IMPROVEMENT (minor): cssutils sets the HTTP header ``User-Agent``
now when fetching sheets over HTTP (with e.g. ``cssutils.parseUrl``).
- *FEATURE* (experimental): Added support to at least parse sheets
with Microsoft only property values for ``filter`` which start with
``progid:DXImageTransform.Microsoft.[...](``. To enable these you need
to set::
from cssutils import settings
settings.set('DXImageTransform.Microsoft', True)
cssutils.ser.prefs.useMinified()
text = 'a {filter:
progid:DXImageTransform.Microsoft.BasicImage( rotation = 90 )}'
print cssutils.parseString(text).cssText
a{filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=90)}
This currently is a **major hack** but if you like to minimize
sheets in the wild which use this kind of CSS cssutils at least can
parse and reserialize them.
license
---
cssutils is published under the LGPL version 3 or later, see
http://cthedot.de/cssutils/
If you have other licensing needs please let me know.
download
For download options see http://cthedot.de/cssutils/
cssutils needs Python 2.4 or higher (tested with Python 2.6.2, 2.5.2,
2.4.4 and Jython 2.5 on Vista only)
Bug reports (via Google code), comments, etc are very much appreciated!
Thanks.
Christof
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Support the Python Software Foundation:
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ANN: Pyspread 0.0.12
Pyspread 0.0.12 released I am pleased to announce the new release 0.0.12 of pyspread. About: -- Pyspread is a cross-platform Python spreadsheet application. It is based on and written in the programming language Python. Instead of spreadsheet formulas, Python expressions are entered into the spreadsheet cells. Each expression returns a Python object that can be accessed from other cells. These objects can represent anything including lists or matrices. Pyspread runs on Linux, Windows and *nix platforms with GTK support. I have reports that it works with MacOS X as well. Homepage: - http://pyspread.sf.net New features in 0.0.12: --- * ODF file support * Detachable tool bars * Cells now support attributes such as fonts, borders, colors * Cells can now be painted on from inside a macro function * Major speed-up and memory reduction * Dependency to networkx removed * Frozen cells that are not updated introduced * Style toolbar added * Find toolbar added * Regular expression search added * Zoom functionality added * Default text color changed to system default (for black themes) * Ok and Cancel buttons swapped in New sheet dialog Bugfixes: - * Strange arange reference behaviour fixed (BUG 2760121) * stt = sum(S[16:18,Y,0]) raises TypeError fixed (BUG 2579698) * On Windows, some dialogs have to be closed twice. (fixed) * Recursion detection dows not work on nested structures, i.e. when S[2,2,2] is referred to from inside a container object, pyspread will not realize a cycle. Therefore, a Maximum recursion depth error is reported (fixed) Known issues: - * ODF documents with many columns and rows can freeze pyspread on loading (use the old pys format instead) * Horizontal cell alignment missing * Some fonts throw an error message when scrolling (but work nonetheless) * Fonts are not included in ODF files * Cell attributes are not copied or deleted with cell content Martin -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
cgi script
Hi, i started learning cgi few days ago in python and everything went fine until i started getting the follwing error The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there was an error in a CGI script. If you think this is a server error, please contact the webmaster. i am using apache on xampp. plz help -- http://mail.python.org/mailman/listinfo/python-list
Re: Python processors? : WAS Re: Does python have the capability for driver development ?
On Sun, 02 Aug 2009 14:19:45 +1200, greg wrote: That's what killed things like the Lisp machine. Their developers couldn't keep up with the huge resources that people like Intel and Motorola had to throw at CPU development, so eventually a general-purpose CPU could run Lisp faster than a Lisp machine. When you say eventually, I think you mean decades ago. I recall a collaboration between Apple and Texas Instruments to build a Macintosh with a Lisp Machine in the late 1980s. From the one box, you could run two computers simultaneously, with two operating systems, one running the Motorola 68020 and the other a Lisp Machine processor. I don't think it sold very well -- by memory, benchmarks showed that for half (or less) of the price, you could run Lisp in software on a vanilla Mac and the software would be faster than running it on the Lisp Machine. TI also had at least one Nubus card for the Mac running a Lisp Machine: http://en.wikipedia.org/wiki/TI_Explorer On a similar note, there were Forth machines also available for the Apple Macintosh. Unlike Lisp, I think they suffered from the general lack of popularity of Forth rather than lack of speed. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Get Cliet IP Address
Fred Atkinson wrote: What is the function to obtain the client browser's IP address? Do you mean the external public IP to the Internet? When I wanted to log the dynamic IP that my ADSL connection gets, I used whatismyip.com like this: import urllib2 QUERY_URL = 'http://www.whatismyip.com/automation/n09230945.asp' def query(): Get IP as a string. As per the whatismyip.com automation rules, this function should not be called more ofter than every 5 minutes. return urllib2.urlopen(QUERY_URL).read() There's probably a better way, but I'm not very good with networking. :o) -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie thwarted by sys.path on Vista
Dave Angel da...@ieee.org wrote in message
news:mailman.4120.1249172970.8015.python-l...@python.org...
Michael M Mason wrote:
div class=moz-text-flowed style=font-family: -moz-fixedI'm running
Python 3.1 on Vista and I can't figure out how to add my own directory to
sys.path.
Thanks to Jon, Piet, David and Dave for the responses.
sys.path gets its values from several places.
Ah, I'd misunderstood the docs: I thought it came from just one place (which
I couldn't find).
Anyway, I'd suggest adding it to PythonPath, and if it's empty, just
create it with the directory you need.
Thanks--that worked!
I'm hoping you know you can also add to sys.path directly during script
initialization. It's just a list, and is writeable.
Yes, but I'm mainly playing in IDLE and I was getting a bit fed up of
repeatedly typing
import sys
sys.path.append('C:/Users/Michael/Code/Python')
import mystuff
--
Michael
--
http://mail.python.org/mailman/listinfo/python-list
Re: cgi script
On Aug 1, 11:11 pm, golu bhardwajjaye...@gmail.com wrote: Hi, i started learning cgi few days ago in python and everything went fine until i started getting the follwing error The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there was an error in a CGI script. Your script has a syntax error. (You forgot a colon or something like that.) If you can, try to run the file directly from a Python interpreter to see where the error is. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Custom namespaces
On Sat, 01 Aug 2009 21:46:35 -0700, Chris Rebert wrote:
Is there any way to install a custom type as a namespace?
For classes/objects, yes, using metaclasses. See the __prepare__()
method in PEP 3115: http://www.python.org/dev/peps/pep-3115/
Looks good, but that's Python 3 only, yes?
At least, I can't get the metaclass to change the __dict__ in Python 2.6.
There's obviously no __prepare__ before 3.0, but I tried the following,
and still __dict__ ends up as a regular dict. Am I missing something?
class VerboseDict(dict):
def __getitem__(self, item):
print (Looking up key '%s'... % item)
return super(VerboseDict, self).__getitem__(item)
class Meta(type):
def __new__(cls, name, bases, namespace):
namespace = VerboseDict(namespace)
obj = super(Meta, cls).__new__(cls, name, bases, namespace)
return obj
MyClass = Meta('MyClass', (object,), dict(x=1, y=2))
--
Steven
--
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Re: Custom namespaces
On Sun, Aug 2, 2009 at 12:18 AM, Steven D'Apranost...@remove-this-cybersource.com.au wrote: On Sat, 01 Aug 2009 21:46:35 -0700, Chris Rebert wrote: Is there any way to install a custom type as a namespace? For classes/objects, yes, using metaclasses. See the __prepare__() method in PEP 3115: http://www.python.org/dev/peps/pep-3115/ Looks good, but that's Python 3 only, yes? Correct. At least, I can't get the metaclass to change the __dict__ in Python 2.6. There's obviously no __prepare__ before 3.0, but I tried the following, and still __dict__ ends up as a regular dict. Am I missing something? class VerboseDict(dict): def __getitem__(self, item): print (Looking up key '%s'... % item) return super(VerboseDict, self).__getitem__(item) class Meta(type): def __new__(cls, name, bases, namespace): namespace = VerboseDict(namespace) obj = super(Meta, cls).__new__(cls, name, bases, namespace) return obj I would /guess/ that type.__new__() is internally doing the equivalent of dict(namespace). Hence why the addition of __prepare__() was necessary; it's probably impossible to accomplish what you want in earlier Python versions. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Generate a new object each time a name is imported
I would like to generate a new object each time I import a name from a module, rather than getting the same object each time. For example, currently I might do something like this: # Module count = 0 def factory(): # Generate a unique object each time this is called global count count += 1 return Object #%d % count # Calling module from Module import factory a = factory() # a == Object #1 b = factory() # b == Object #2 del factory I'm looking for a way to hide the generation of objects from the caller, so I could do something like this: from Module import factory() as a # a == Object #1 from Module import factory() as b # b == Object #2 except of course that syntax is illegal. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
On Aug 2, 12:35 am, Steven D'Aprano st...@remove-this- cybersource.com.au wrote: I'm looking for a way to hide the generation of objects from the caller, so I could do something like this: from Module import factory() as a # a == Object #1 from Module import factory() as b # b == Object #2 Explicit is better than implicit. In other words, I don't see why you need to hide this. Just import the factory function and call it. from Module import factory a = factory() -- http://mail.python.org/mailman/listinfo/python-list
RE: Run pyc file without specifying python path ?
-Original Message- From: Dave Angel [mailto:da...@dejaviewphoto.com] Sent: Thursday, July 30, 2009 20:08 To: Barak, Ron Cc: 'python-list@python.org' Subject: Re: Run pyc file without specifying python path ? Barak, Ron wrote: Hi Dave, On second thoughts, I may have a problem implementing the wrapper solution, because my actual test_pyc.pyc, needs to parse its command line. Namely, the actual call to test_pyc.pyc looks something like this: $ python test_pyc.py -U dave -PpasswoRD -C CreateMcGroupOnVolume --SVMs_IPs '10.1.1.1 , 10.1.1.2' -n host1,host2 -g gn -j jn -s svn -t tvn -p pool1 -l -c And I don't know of a way to add these parameters to the import test_pyc in wrapper Is there a way to pass information to an imported module ? (Sorry if there's an obvious answer, I just cannot figure it out). Bye, Ron. -Original Message- From: Dave Angel [mailto:da...@dejaviewphoto.com] Sent: Thursday, July 30, 2009 16:03 To: Barak, Ron Cc: 'Dave Angel'; 'python-list@python.org' Subject: RE: Run pyc file without specifying python path ? Barak, Ron wrote: -Original Message- From: Dave Angel [mailto:da...@ieee.org] Sent: Wednesday, July 29, 2009 21:05 To: Barak, Ron Cc: 'python-list@python.org' Subject: Re: Run pyc file without specifying python path ? Barak, Ron wrote: Hi, I wanted to make a python byte-code file executable, expecting to be able to run it without specifying python on the (Linux bash) command line. So, I wrote the following: [r...@vmlinux1 python]# cat test_pyc.py #!/usr/bin/env python print hello [r...@vmlinux1 python]# and made its pyc file executable: [r...@vmlinux1 python]# ls -ls test_pyc.pyc 4 -rwxr-xr-x 1 root root 106 Jul 29 14:22 test_pyc.pyc [r...@vmlinux1 python]# So, I see: [r...@vmlinux1 python]# file test_pyc.py* test_pyc.py: a python script text executable test_pyc.pyc: python 2.3 byte-compiled [r...@vmlinux1 python]# If I try to do the following, no problem: [r...@vmlinux1 python]# python test_pyc.pyc hello [r...@vmlinux1 python]# However, the following fails: [r...@vmlinux1 python]# ./test_pyc.pyc -bash: ./test_pyc.pyc: cannot execute binary file [r...@vmlinux1 python]# Is there a way to run a pyc file without specifying the python path ? Bye, Ron. I don't currently run Unix, but I think I know the problem. In a text file, the shell examines the first line, and if it begins #! it's assumed to point to the executable of an interpreter for that text file. Presumably the same trick doesn't work for a .pyc file. Why not write a trivial wrapper.py file, don't compile it, and let that invoke the main code in the .pyc file? Then make wrapper.py executable, and you're ready to go. DaveA Hi Dave, Your solution sort of defeats my intended purpose (sorry for not divulging my 'hidden agenda'). I wanted my application to hide the fact that it's a python script, and look as much as possible like it's a compiled program. The reason I don't just give my user a py file, is that I don't want a cleaver user to change the innards of the script. On the other hand, I don't want to make a compiled (freezed?) version of the application, because it'll grow the resulting file significantly, and I don't have the experience to know how it will run on different Linuxes. Bye, Ron. Most of the other answers basically paraphrased my suggestion of making a wrapper file, not compiling it, and making it executable. With that approach, the user just types wrapper.py on his command line. And wrapper.py only needs two lines, a shebang, and an import, no big deal if the user modifies it. The rest of your code can be .pyc files. Steven makes some good points. You have to define what level of clever you're protecting from. A determined hacker will get in no matter what you do, unless you want to ship the program in a proprietary embedded system, encased in epoxy. Further, if you have an extension of .py or .pyc, a knowledgeable hacker will know it's probably python. You imply you want it to run unmodifed on multiple unknown Linux versions. I think that lets out binfmt solutions. That means you need to test and support not only multiple Linux implementations, but multiple Python versions, because who knows what the user may have installed. I think you need to rethink your support strategy. And maybe concentrate on being able to detect change, rather than prevent it. DaveA (Please don't top-post. It puts responses out of order) You don't have to do anything special. Any module can import sys, and parse sys.argv, as long as it wasn't yet modified. DaveA Hi Dave, It seems like I don't understand your solution. I use the (appatched) soapAPI.py as
Re: Newbie thwarted by sys.path on Vista
Michael M Mason wrote:
Dave Angel da...@ieee.org wrote in message
news:mailman.4120.1249172970.8015.python-l...@python.org...
Michael M Mason wrote:
div class=moz-text-flowed style=font-family: -moz-fixedI'm
running Python 3.1 on Vista and I can't figure out how to add my own
directory to sys.path.
Thanks to Jon, Piet, David and Dave for the responses.
sys.path gets its values from several places.
Ah, I'd misunderstood the docs: I thought it came from just one place
(which I couldn't find).
Anyway, I'd suggest adding it to PythonPath, and if it's empty, just
create it with the directory you need.
Thanks--that worked!
Be careful, I'm screwed things up on several occasions by placing a file
on PYTHONPATH that overrides a file in the standard library, test.py
being my favourite!
I'm hoping you know you can also add to sys.path directly during
script initialization. It's just a list, and is writeable.
Yes, but I'm mainly playing in IDLE and I was getting a bit fed up of
repeatedly typing
import sys
sys.path.append('C:/Users/Michael/Code/Python')
import mystuff
--
Kindest regards.
Mark Lawrence.
--
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Re: Generate a new object each time a name is imported
Steven D'Aprano st...@remove-this-cybersource.com.au writes: I'm looking for a way to hide the generation of objects from the caller, so I could do something like this: from Module import factory() as a # a == Object #1 from Module import factory() as b # b == Object #2 except of course that syntax is illegal. That sounds reasonable (zen quotes aside), but it's just not possible in current Python. It would require for any use of a in subsequent code to not only refer to an object, but also to automagically call it. I know of no mechanism to do that. While Python allows intricate customization of access to objects, simply referring to a name remains fixed in meaning, probably intentionally. (The cell mechanism used to implement closures sounds like it could help, but a cell only stores a single value, not a factory, and it doesn't apply to global variables anyway.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie thwarted by sys.path on Vista
Mark Lawrence breamore...@yahoo.co.uk wrote in message news:mailman.4130.1249203322.8015.python-l...@python.org... Be careful, I'm screwed things up on several occasions by placing a file on PYTHONPATH that overrides a file in the standard library, test.py being my favourite! Thanks. Sure enough, I've already got my own test.py but I hadn't discovered it was a problem yet... -- Michael -- http://mail.python.org/mailman/listinfo/python-list
Re: Run pyc file without specifying python path ?
Barak, Ron wrote:
Hi Dave,
It seems like I don't understand your solution.
I use the (appatched) soapAPI.py as the wrapper to parsing.pyc.
However, if I do (for instance):
$ python -u parsing.pyc -U aaa
The last line of the output is (as expected):
return_code: 12 ; params: {'username': 'aaa'}
But, if I try the following:
$ soapAPI.py -U aaa
I don't get this line. Only the output to stderr gets printed to the screen.
Bye,
Ron.
Hi Ron,
To make it easier for anybody following this thread, let me post the
minimum equivalent source files, inline.
parsing.py:
--
#!/usr/bin/env python
import sys
def main():
print sys.stderr, This is stderr output
return 5, sys.argv
if __name__ == __main__:
return_code, params = main()
print return_code:,return_code,; params:,params
sys.exit(return_code)
---
soapapi.py:
---
#!/usr/bin/env python
import sys
import parsing
parsing.main()
--
When I run soapapi.;py, it indeed prints only the stderr output.
The solution is to move (most or all) of the top-level code of
parsing.py into a main() function. Since you already have a main(),
I'll rename that, and make a new one that calls it.
new parsing.py:
---
#!/usr/bin/env python
import sys
def innermain():
print sys.stderr, This is stderr output
return 5, sys.argv
def main():
return_code, params = innermain()
print return_code:,return_code,; params:,params
sys.exit(return_code)
if __name__ == __main__:
main()
---
The output is now two lines, one from innermain(), and one from main().
And it's the same whether the user runs parsing.py or soapAPI.py
To clarify what happened, realize that when the user invokes
parsing.py, the module is considered a script, and gets a pseudo-name of
__main__When that same module is imported by another one, it is
considered a library module, and gets its own name parsing
So any logic that explicitly checks for __main__ has to change,
because we want identical behavior in the two cases.
DaveA
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Re: Newbie Question regarding __init__()
Simon wrote: Okay I will fix my code and include self and see what happens. I know I tried that before and got another error which I suspect was another newbie error. The idea behind the init_Pre is that I can put custom code here to customize the __init__ instead of creating a new subclass. This kind of hook pattern allows you to flatten your inheritance hierarchy. I can choose in the init_Pre method to execute code before the init_exec (which contains the default __init__ code) and still execute the init_Exec method or I can completely customize the entire __init__ by returning False from init_Pre and prevent the init_Exec from being called. I use this type of pattern with almost all my methods. In this way I can create a less complicated inheritance chain but still have have custom code when needed without sub-classing. I am use to Visual FoxPro which where you can do =is.init_Pre().And.This.init_Exec() and the result is discarded so that is why it looks the way it does. In this form init_Exec has to return a value. However, If self.init_Pre(): self.init_Exec() would work the same and then I could avoid returning a value. Thanks, Simon On Aug 1, 5:52 am, Dave Angel da...@ieee.org wrote: Nat Williams wrote: As MRAB described, ALL instance methods need to accept 'self' as a first parameter, as that will be passed to them implicitly when they are called. This includes __init__. The name 'self' is just a commonly accepted convention for the name of the instance object passed to methods. You don't have to call it that, but you really should. Take a look athttp://docs.python.org/tutorial/classes.html#class-objects It might help shed some light on how methods and instances work. One other thing. I'm a little confused by the first line of dcObject.__init__: self.init_Pre() and self.init_Exec() I suspect this does not do what you think it does. init_Pre and init_Exec will both be called by this expression (unless init_Pre throws an exception, of course). You're not getting anything here that you wouldn't by just calling each method on a separate line, except just making it harder to read. Read the doc-string for init_Pre() and for init_Exec(). The final version of init_Pre() will return False in some circumstances, and in those circumstances Simon doesn't want init_Exec() to be called. He's deliberately using the short-circuit evaluation of 'and' to accomplish that. On Fri, Jul 31, 2009 at 8:53 PM, Simon dciphercomput...@gmail.com wrote: Hi So should the dcObject class include the self as well since I have not defined an __init__ method in dcCursor? Simon -- http://mail.python.org/mailman/listinfo/python-list Every one of those methods in both of those classes need a self first argument. As others have said, all instance methods need a 'self.' (Please don't top-post. You should put new responses at the end of quoted text, or sometimes inline if that's clearer.) I don't understand your comparison to Foxpro. read on. As your code was last posted, you don't need a return value from init_Exec() Every function that doesn't have an explicit return will return None. And None is interpreted as False in an and expression. If you had an if around the whole thing, then you'd care. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Help understanding the decisions *behind* python?
sturlamolden wrote: On 20 Jul, 18:27, Phillip B Oldham phillip.old...@gmail.com wrote: We're not looking to start any arguments or religious wars and we're not asking that python be changed into something its not. We'd simply like to understand the decision behind the lists and tuple structures. We feel that in not getting the difference between the two types we may be missing out on using these data structures to their full potential. A crude simplification would be: - A Python programmer will use a tuple where a C programmer will use a struct. - Python and C programmers use lists and arrays similarly. Tuples are used for passing arguments to and from a function. Common use of tuples include multiple return values and optional arguments (*args). It has already been mentioned that tuples are immutable and can be used as dictionary keys. I think collections.namedtuple, introduced in Python 2.6, might help bridge the gap between a traditional tuple and a C struct. -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
Steven D'Aprano wrote: I would like to generate a new object each time I import a name from a module, rather than getting the same object each time. For example, currently I might do something like this: # Module count = 0 def factory(): # Generate a unique object each time this is called global count count += 1 return Object #%d % count # Calling module from Module import factory a = factory() # a == Object #1 b = factory() # b == Object #2 del factory I'm looking for a way to hide the generation of objects from the caller, so I could do something like this: from Module import factory() as a # a == Object #1 from Module import factory() as b # b == Object #2 except of course that syntax is illegal. How about class A(object): ... def __init__(self): ... self._n = 0 ... @property ... def a(self): ... try: ... return self._n ... finally: ... self._n += 1 ... import sys sys.modules[yadda] = A() from yadda import a from yadda import a as b a, b (0, 1) Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
On Sun, 02 Aug 2009 12:33:03 +0200, Peter Otten wrote: How about [snip] import sys sys.modules[yadda] = A() Perfect! That's exactly the sort of thing I'm looking for. Thanks for everyone who answered. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie thwarted by sys.path on Vista
Michael M Mason wrote: Mark Lawrence breamore...@yahoo.co.uk wrote in message news:mailman.4130.1249203322.8015.python-l...@python.org... Be careful, I'm screwed things up on several occasions by placing a file on PYTHONPATH that overrides a file in the standard library, test.py being my favourite! Thanks. Sure enough, I've already got my own test.py but I hadn't discovered it was a problem yet... Typical, tried to reproduce it and can't! Still at least you've been warned. -- Kindest regards. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
Peter Otten __pete...@web.de writes: import sys sys.modules[yadda] = A() OMG wow. I bow to you. But I'm not sure whether that's bowing in awe or in terror. -- http://mail.python.org/mailman/listinfo/python-list
Re: Help understanding the decisions *behind* python?
On 8/1/2009 9:31 PM, sturlamolden wrote: - Python and C programmers use lists and arrays similarly. I'm guessing that's because of the brackets... Marcus -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
wrote: KNode cannot parse your From-string correctly. Strange. Peter Otten __pete...@web.de writes: import sys sys.modules[yadda] = A() OMG wow. I bow to you. But I'm not sure whether that's bowing in awe or in terror. I don't know who invented it, but it's an old trick. It even made it into the standard library (email.LazyImporter). For the record: I don't recommend it. Peter -- http://mail.python.org/mailman/listinfo/python-list
Skipping a superclass
I have a series of subclasses like this: class A(object): def method(self, *args): print Lots of work gets done here in the base class class B(A): def method(self, *args): print A little bit of work gets done in B super(B, self).method(*args) class C(B): def method(self, *args): print A little bit of work gets done in C super(C, self).method(*args) However, the work done in C.method() makes the work done in B.method() obsolete: I want one to run, or the other, but not both. C does need to inherit from B, for the sake of the other methods, so I want C.method() *only* to skip B while still inheriting from A. (All other methods have to inherit from B as normal.) So what I have done is change the call to super in C to super(B, self) instead of super(C, self). It seems to work, but is this safe to do? Or are there strange side-effects I haven't seen yet? -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Seeding the rand() Generator
How does one seed the rand() generator when retrieving random recordings in MySQL? Regards, Fred -- http://mail.python.org/mailman/listinfo/python-list
Re: Skipping a superclass
On Sun, Aug 2, 2009 at 5:36 AM, Steven D'Apranost...@remove-this-cybersource.com.au wrote: I have a series of subclasses like this: class A(object): def method(self, *args): print Lots of work gets done here in the base class class B(A): def method(self, *args): print A little bit of work gets done in B super(B, self).method(*args) class C(B): def method(self, *args): print A little bit of work gets done in C super(C, self).method(*args) However, the work done in C.method() makes the work done in B.method() obsolete: I want one to run, or the other, but not both. C does need to inherit from B, for the sake of the other methods, so I want C.method() *only* to skip B while still inheriting from A. (All other methods have to inherit from B as normal.) So what I have done is change the call to super in C to super(B, self) instead of super(C, self). It seems to work, but is this safe to do? Or are there strange side-effects I haven't seen yet? Barring some true weirdness in super(), I don't /think/ so. It obviously works fine in the single-inheritance case, and (after some brute-force testing) the only permitted multiple inheritances involving C and (A or B) always have C ahead of B in the MRO (method resolution order). The fact that you're wanting to bypass a superclass method might suggest however, that your hierarchy could be structured better. Have you considered moving B.method() into another, new class (e.g. newB) which subclasses B? Then C can inherit from B without inheriting the unwanted method, while B's functionality still exists, just under a new name (newB). Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie thwarted by sys.path on Vista
Michael M Mason wrote: I'm running Python 3.1 on Vista and I can't figure out how to add my own directory to sys.path. The docs suggest that I can either add it to the PYTHONPATH environment variable or to the PythonPath key in the registry. However, PYTHONPATH doesn't exist, and updating the registry key has no effect (and in any case the contents aren't the same as sys.path). So where does sys.path get its value from, and how do I change it? You can use my PEP 370 (http://python.org/dev/peps/pep-0370/) and a .pth file to extend the search path for modules. import os import site site.USER_SITE '/home/heimes/.local/lib/python2.6/site-packages' if not os.path.isdir(site.USER_SITE): ... os.makedirs(site.USER_SITE) ... pth = open(os.path.join(site.USER_SITE, michal.pth), w) pth.write(C:/Users/Michael/Code/Python\n) pth.close() Restart Python, your custom search path should be in sys.path. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: A Bug By Any Other Name ...
In article mailman.3309.1247861321.8015.python-l...@python.org, J. Cliff Dyer j...@sdf.lonestar.org wrote: On Fri, 2009-07-17 at 20:53 +, Albert van der Horst wrote: Because unlike in algol 68 in python whitespace is relevant, we could get by with requiring whitespace: x= -q # okay ab and -ac and -b -d# okay 8 ** -2 # okay This is actually quite thoroughly untrue. In python, *indentation* is significant. Whitespace (internal to a line) is not. You can even call methods like this if you want: You totally don't get it. You describe how python is now. I propose a change to be made to python. Small wonder that that is different from what it is now. s = 'abc' s. upper() ABC You prove nothing by giving examples. You can disprove by giving one counter example, here it goes. Whitespace (internal to a line) is significant. In Python you cannot change xleftgoing = 12300 to x left going = 123 000 000 (You can in Algol68) Obviously, that's A Bad Idea(tm), but python's parser won't stop you. What is a bad idea? Apparently you are not talking about my idea of changing the parser. (Pythons parser won't stop you from changing the parser doesn't make sense.) The ++ operator gotcha is so minor that I can't remember anyone actually asking about it on the list (who was actually facing it as a problem--this thread was started by idle speculation). Can we not change the language syntax to address non-issues? As other languages have an Eleventh Commandment against concatenating operators, the larger issue is hardly futile. Practicality beats purity, a.k.a. don't you have something better to do? I'm having a great time, thank you! Cheers, Cliff Groetjes Albert -- -- Albert van der Horst, UTRECHT,THE NETHERLANDS Economic growth -- being exponential -- ultimately falters. alb...@spearc.xs4all.nl =n http://home.hccnet.nl/a.w.m.van.der.horst -- http://mail.python.org/mailman/listinfo/python-list
Re: Colour of output text
In article mailman.3163.1247670223.8015.python-l...@python.org,
Jean-Michel Pichavant jeanmic...@sequans.com wrote:
Nobody wrote:
On Fri, 10 Jul 2009 09:23:54 +, garabik-news-2005-05 wrote:
I would like to learn a way of changing the colour of a particular
part of the output text. I've tried the following
On Unix operating systems this would be done through the curses interface:
http://docs.python.org/library/curses.html
Or using ANSI colour codes:
colours = {
'none' :,
'default':\033[0m,
'bold' :\033[1m,
[snip]
# non-standard attributes, supported by some terminals
This comment should have appeared immediately after none ;)
Hard-coding control/escape sequences is just lame. Use the curses modules
to obtain the correct sequences for the terminal.
As the OP I'm really interested in doing so. I currently have all my
colors hard-coded.
Now It may be lame but as soon as I call curses.initscr(), it's just
messing up with my terminal, moreover I didn't figure out how to print
'hello' using curses color codes.
Anyone has an example ? I'm pretty sure it may fit in one line.
In general initscr() ought to work. It fails if it has no/a wrong
idea of what your terminal is.
In the same shell as you run run your program type
set | grep -i term
Now some entry should show up, e.g.
TERM=xterm
infocmp $TERM
should fetch information about your terminal, from the same source
as curses does.
Possible problems are:
- your operating system/configurations lies to curses about the terminal
or your terminal is not specified at all
- curses has not been properly installed and cannot find the database
Groetjes Albert
JM
--
--
Albert van der Horst, UTRECHT,THE NETHERLANDS
Economic growth -- being exponential -- ultimately falters.
alb...@spearc.xs4all.nl =n http://home.hccnet.nl/a.w.m.van.der.horst
--
http://mail.python.org/mailman/listinfo/python-list
IFL 2009: Call for Papers and Participation
Call for Papers and ParticipationIFL 2009Seton Hall UniversitySOUTH ORANGE, NJ, USAhttp://tltc.shu.edu/blogs/projects/IFL2009/Register at: http://tltc.shu.edu/blogs/projects/IFL2009/registration.html* NEW *Registration and talk submission extended to August 23, 2009! ***The 21st International Symposium on Implementation and Application of Functional Languages, IFL 2009, will be held for the first time in the USA. The hosting institution is Seton Hall University in South Orange, NJ, USA and the symposium dates are September 23-25, 2009. It is our goal to make IFL a regular event held in the USA and in Europe. The goal of the IFL symposia is to bring together researchers actively engaged in the implementation and application of functional and function-based programming languages. IFL 2009 will be a venue for researchers to present and discuss new ideas and concepts, work in progress, and publication-ripe results related to the implementation and application of functional languages and function-based programming.Following the IFL tradition, IFL 2009 will use a post-symposium review process to produce a formal proceedings which will be published by Springer in the Lecture Notes in Computer Science series. All participants in IFL 2009 are invited to submit either a draft paper or an extended abstract describing work to be presented at the symposium. These submissions will be screened by the program committee chair to make sure they are within the scope of IFL and will appear in the draft proceedings distributed at the symposium. Submissions appearing in the draft proceedings are not peer-reviewed publications. After the symposium, authors will be given the opportunity to incorporate the feedback from discussions at the symposium and will be invited to submit a revised full arcticle for the formal review process. These revised submissions will be reviewed by the program committee using prevailing academic standards to select the best articles that will appear in the formal proceedings.Invited Speaker: Benjamin C. Pierce University of Pennsylvania Talk Title: How To Build Your Own Bidirectional Programming LanguageTOPICSIFL welcomes submissions describing practical and theoretical work as well as submissions describing applications and tools. If you are not sure if your work is appropriate for IFL 2009, please contact the PC chair at ifl2...@shu.edu. Topics of interest include, but are not limited to:language concepts type checking contractscompilation techniques staged compilationruntime function specializationruntime code generation partial evaluation (abstract) interpretation generic programming techniques automatic program generation array processing concurrent/parallel programming concurrent/parallel program execution functional programming and embedded systems functional programming and web applications functional programming and security novel memory management techniques runtime profiling and performance measurements debugging and tracing virtual/abstract machine architectures validation and verification of functional programs tools and programming techniques FP in EducationPAPER SUBMISSIONSProspective authors are encouraged to submit papers or extended abstracts to be published in the draft proceedings and to present them at the symposium. All contributions must be written in English, conform to the Springer-Verlag LNCS series format and not exceed 16 pages. The draft proceedings will appear as a technical report of the Department of Mathematics and Computer Science of Seton Hall University.IMPORTANT DATESRegistration deadline August 15, 2009Presentation submission deadline August 15, 2009IFL 2009 Symposium September 23-25, 2009Submission for review process deadline November 1, 2009Notification Accept/Reject December 22, 2009Camera ready version February 1, 2010PROGRAM COMMITTEEPeter Achten University of Nijmegen, The NetherlandsJost Berthold Philipps-Universität Marburg, GermanyAndrew Butterfield University of Dublin, IrelandRobby Findler Northwestern University, USAKathleen Fisher ATT Research, USACormac Flanagan University of California at Santa Cruz, USAMatthew Flatt University of Utah, USAMatthew Fluet Toyota Technological Institute at Chicago, USADaniel Friedman Indiana University, USAAndy Gill University of Kansas, USAClemens Grelck University of Amsterdam/Hertfordshire, The Netherlands/UKJurriaan Hage Utrecht University, The NetherlandsRalf Hinze Oxford University, UKPaul Hudak Yale University, USAJohn Hughes Chalmers University of Technology, SwedenPatricia Johann University of Strathclyde, UKYukiyoshi Kameyama University of Tsukuba, JapanMarco T. Morazán (Chair) Seton Hall University, USARex Page University of Oklahoma, USAFernando Rubio Universidad Complutense de Madrid, SpainSven-Bodo Scholz University of Hertfordshire, UKManuel Serrano INRIA Sophia-Antipolis, FranceChung-chieh Shan Rutgers University, USADavid Walker Princeton University, USAViktória Zsók Eötvös Loránd
Is python buffer overflow proof?
Is a _pure_ python program buffer overflow proof? For example in C++ you can declare a char[9] to hold user input. If the user inputs 10+ chars a buffer overflow occurs. In python, I cannot seem to find a way to define/restrict a string length. This is probably by design and raises the topic in question. Am curious to see the opinions of people who know. TIA. -- http://mail.python.org/mailman/listinfo/python-list
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PAK WEB www.pak-web-pages.blogspot.com PAK WEB TV www.pak-web-pages.blogspot.com PAK WEBSITES www.pak-web-pages.blogspot.com PAK WEB DIRECTORY www.pak-web-pages.blogspot.com PAK WEB HOSTING www.pak-web-pages.blogspot.com PAK WEB HOST www.pak-web-pages.blogspot.com PAK WEB HOSTING www.pak-web-pages.blogspot.com PAK WEB www.pak-web-pages.blogspot.com PAK WEB www.pak-web-pages.blogspot.com PAK WEB PAK WEB PAK WEB www.pak-web-pages.blogspot.com PAK WEB www.pak-web-pages.blogspot.com PAK WEB on www.pak-web-pages.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Is python buffer overflow proof?
On 8/2/2009 9:50 AM, Jizzai wrote: Is a _pure_ python program buffer overflow proof? For example in C++ you can declare a char[9] to hold user input. If the user inputs 10+ chars a buffer overflow occurs. In python, I cannot seem to find a way to define/restrict a string length. This is probably by design and raises the topic in question. Am curious to see the opinions of people who know. TIA. I believe that python is buffer overflow proof. In fact, I think that even ctypes is overflow proof... Marcus -- http://mail.python.org/mailman/listinfo/python-list
Re: Seeding the rand() Generator
On 8/2/2009 9:42 AM, Fred Atkinson wrote: How does one seed the rand() generator when retrieving random recordings in MySQL? Regards, Fred something like: import random, time random.seed(time.time()) #not actual record access code: sqlite3.recordaccessfuction(recordid = random.rand()) Marcus -- http://mail.python.org/mailman/listinfo/python-list
Re: Is python buffer overflow proof?
Marcus Wanner wrote: I believe that python is buffer overflow proof. In fact, I think that even ctypes is overflow proof... No, ctypes isn't buffer overflow proof. ctypes can break and crash a Python interpreter easily. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Processes not exiting
On 31 July, 11:27, Piet van Oostrum p...@cs.uu.nl wrote: ma3mju matt.u...@googlemail.com (m) wrote: m Hi all, m I'm having trouble with multiprocessing I'm using it to speed up some m simulations, I find for large queues when the process reaches the m poison pill it does not exit whereas for smaller queues it works m without any problems. Has anyone else had this trouble? Can anyone m tell me a way around it? The code is in two files below. How do you know it doesn't exit. You haven't shown any of your output. I did discover a problem in your code, but it should cause an exception: m #set off some of the easy workers on the hard work (maybe double m number of hard) m for i in range(0,num_hard_workers): m hard_work_queue.put(None) m hard_workers.append(multiprocessing.Process m (target=GP.RandomWalkGeneralizationErrorParallel,args= m (hard_work_queue,result_queue,))) m #wait for all hard workers to finish m for worker in hard_workers: m worker.join() Here you create new hard workers, but you never start them. The join should then give an exception when it reaches these. -- Piet van Oostrum p...@cs.uu.nl URL:http://pietvanoostrum.com[PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org Ok thanks I'll change that In a sec, It never reaches that bit of code because the easy_workers don't exit so it never gets past the join(). As far as running it goes I get the datapt and number of points printed to the list for everything in both queues. When it reaches the end of either queue I get Poison on the screen then here for each process but I don't get worker joined and as expected don't get this should not appear. If I have a look at the processes running after all queues are supposed to have finished I see all of them running taking little or no resources. This is running on Ubuntu Jaunty at home and the same happens on the Debian machine at uni. The weird thing is that if I run them with less points the processes do manage to exit. Thanks Matt -- http://mail.python.org/mailman/listinfo/python-list
Re: Processes not exiting
On 31 July, 11:34, MRAB pyt...@mrabarnett.plus.com wrote: ma3mju wrote: Hi all, I'm having trouble with multiprocessing I'm using it to speed up some simulations, I find for large queues when the process reaches the poison pill it does not exit whereas for smaller queues it works without any problems. Has anyone else had this trouble? Can anyone tell me a way around it? The code is in two files below. [snip] #get number of cores and set the number on concurrent processes num_hard_workers = 2 num_workers = multiprocessing.cpu_count()*1.5 easy_workers = [] hard_workers = [] #add poison pill for each worker and create the worker for i in range(0,num_workers-num_hard_workers): easy_work_queue.put(None) easy_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (easy_work_queue,result_queue,))) for i in range(0,num_hard_workers): hard_work_queue.put(None) hard_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (hard_work_queue,result_queue,))) You have 2 hard workers and ceil(CPU_count * 1.5) - 2 easy workers. What if the number of CPUs was 1? That would give 2 hard and 0 easy! Also, I recommend that you put only 1 'poison pill' in each queue and have the workers put it back when they see it. I'll give that a go in a sec and see if it helps. The processes quit out for smaller queues though so it should in theory be alright. I'm not too fussed about the CPU's it's only there because I change between a uni PC and home one with a different number of cores in each but both greater than one. -- http://mail.python.org/mailman/listinfo/python-list
Re: Predefined Variables
Piet van Oostrum wrote:
Scott David Daniels scott.dani...@acm.org (SDD) wrote:
SDD Stephen Cuppett (should have written in this order):
Fred Atkinson fatkin...@mishmash.com wrote ...
Is there a pre-defined variable that returns the GET line...
os.environment('QUERY_STRING')
SDD Maybe you mean:
SDD os.environ['USER']
Let's take the best of both:
os.environ['QUERY_STRING']
Sorry about that. I was testing expression before posting, and I don't
do that much cgi stuff. I forgot to restore the variable name.
--Scott David Daniels
scott.dani...@acm.org
--
http://mail.python.org/mailman/listinfo/python-list
Re: Is python buffer overflow proof?
On Sun, 02 Aug 2009 13:50:14 +, Jizzai wrote: Is a _pure_ python program buffer overflow proof? It's supposed to be. For example in C++ you can declare a char[9] to hold user input. If the user inputs 10+ chars a buffer overflow occurs. In python, I cannot seem to find a way to define/restrict a string length. This is probably by design and raises the topic in question. That's a separate issue from being buffer overflow proof. You can't specify that a string have a maximum of N characters except by slicing the string after it's formed: s = x*1 # Make a big string. s = s[:100] # Limit it to 100 characters. But Python won't overflow any buffers even if you try to create a truly huge string: s = x*(1024**4) # Try to create a 1 TB string. Your PC will run slow while Python and the OS tries to allocate 1TB of memory, then it will safely raise MemoryError. Pure Python should never dump core. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Seeding the rand() Generator
Fred Atkinson wrote: How does one seed the rand() generator when retrieving random recordings in MySQL? It is not entirely clear what you are asking. If you are talking about MySQL's random number generator, you are talking in the wrong newsgroup. If you are talking about Python's, does this work? import random random.seed(123542552) I'm not quite sure how you came to believe that Python controls MySQL, as opposed to using its services. --Scott David Daniels scott.dani...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
Re: Processes not exiting
On 2 Aug, 15:48, ma3mju matt.u...@googlemail.com wrote: On 31 July, 11:34, MRAB pyt...@mrabarnett.plus.com wrote: ma3mju wrote: Hi all, I'm having trouble with multiprocessing I'm using it to speed up some simulations, I find for large queues when the process reaches the poison pill it does not exit whereas for smaller queues it works without any problems. Has anyone else had this trouble? Can anyone tell me a way around it? The code is in two files below. [snip] #get number of cores and set the number on concurrent processes num_hard_workers = 2 num_workers = multiprocessing.cpu_count()*1.5 easy_workers = [] hard_workers = [] #add poison pill for each worker and create the worker for i in range(0,num_workers-num_hard_workers): easy_work_queue.put(None) easy_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (easy_work_queue,result_queue,))) for i in range(0,num_hard_workers): hard_work_queue.put(None) hard_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (hard_work_queue,result_queue,))) You have 2 hard workers and ceil(CPU_count * 1.5) - 2 easy workers. What if the number of CPUs was 1? That would give 2 hard and 0 easy! Also, I recommend that you put only 1 'poison pill' in each queue and have the workers put it back when they see it. I'll give that a go in a sec and see if it helps. The processes quit out for smaller queues though so it should in theory be alright. I'm not too fussed about the CPU's it's only there because I change between a uni PC and home one with a different number of cores in each but both greater than one. Just tried changing the poison pill part to no avail sadly -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
Peter Otten wrote: Steven D'Aprano wrote: I'm looking for a way to hide the generation of objects from the caller, so I could do something like this: from Module import factory() as a # a == Object #1 from Module import factory() as b # b == Object #2 except of course that syntax is illegal. How about For newbies who do not get how the following works, but would like to know, I am adding some explanation. class A(object): ... def __init__(self): ... self._n = 0 ... @property ... def a(self): ... try: ... return self._n ... finally: ... self._n += 1 The @property decorator turns the 'a' function into the hidden getter function for what looks to the outside world like a simple instance attribute named 'a'. import sys sys.modules[yadda] = A() sys.modules is a system namespace that normally associates names with modules. It is used by import statements to find existing modules. However, there is no requirement that the associated object actually be a module. A module is simply a collection of objects accessed as attributes. One can get and set attributes of a module, and but hardly anyhing else. Other attribute collection objects will do as well as far as imports are concerned. 'If it quack like a duck (module in this case)...' The above sets the 'module' to an *instance* of class A. from yadda import a This looks for the 'module' named 'yadda'. It finds one - the instance of A. It then requests attribute 'a' (of that instance). That request is routed to the getter function. This import statement could be in any module, not just the one that set A() as a module surrogate. from yadda import a as b a, b (0, 1) As Peter mentioned in his followup, module surrogates were intended for lazy imports of expensive-to-compute attributes that might never be needed, so their creation could be delayed to whenever needed, if ever. Tricks like the above are not recommended for normal usage, but do illstrate some aspects of the language. Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: How to read webpage
Maybe your python2.5 not working good!? But, I use python 2.6 , and i use this for your problem: import urllib html = urllib.urlopen(http://www.rediff.com/;).read() print html If you want use authenticate then... You make working urllib2 and use this auth = urllib2.Request(auth_uri, authreq_data) On Aug 1, 4:52 pm, MRAB pyt...@mrabarnett.plus.com wrote: tarun wrote: Dear All, I want to read a webpage and copy the contents of it in word file. I tried to write following code: import urllib2 urllib2.urlopen(http://www.rediff.com/;) *Error:-* urllib2.urlopen(http://www.icicibank.com/;) File C:\Python25\lib\urllib2.py, line 121, in urlopen return _opener.open(url, data) File C:\Python25\lib\urllib2.py, line 374, in open response = self._open(req, data) File C:\Python25\lib\urllib2.py, line 392, in _open '_open', req) File C:\Python25\lib\urllib2.py, line 353, in _call_chain result = func(*args) File C:\Python25\lib\urllib2.py, line 1100, in http_open return self.do_open(httplib.HTTPConnection, req) File C:\Python25\lib\urllib2.py, line 1075, in do_open raise URLError(err) urllib2.URLError: urlopen error (11001, 'getaddrinfo failed') I've just tried it. I didn't get an exception, so your problem must be elsewhere. -- http://mail.python.org/mailman/listinfo/python-list
Re: Processes not exiting
ma3mju wrote: On 2 Aug, 15:48, ma3mju matt.u...@googlemail.com wrote: On 31 July, 11:34, MRAB pyt...@mrabarnett.plus.com wrote: ma3mju wrote: Hi all, I'm having trouble with multiprocessing I'm using it to speed up some simulations, I find for large queues when the process reaches the poison pill it does not exit whereas for smaller queues it works without any problems. Has anyone else had this trouble? Can anyone tell me a way around it? The code is in two files below. [snip] #get number of cores and set the number on concurrent processes num_hard_workers = 2 num_workers = multiprocessing.cpu_count()*1.5 easy_workers = [] hard_workers = [] #add poison pill for each worker and create the worker for i in range(0,num_workers-num_hard_workers): easy_work_queue.put(None) easy_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (easy_work_queue,result_queue,))) for i in range(0,num_hard_workers): hard_work_queue.put(None) hard_workers.append(multiprocessing.Process (target=GP.RandomWalkGeneralizationErrorParallel,args= (hard_work_queue,result_queue,))) You have 2 hard workers and ceil(CPU_count * 1.5) - 2 easy workers. What if the number of CPUs was 1? That would give 2 hard and 0 easy! Also, I recommend that you put only 1 'poison pill' in each queue and have the workers put it back when they see it. I'll give that a go in a sec and see if it helps. The processes quit out for smaller queues though so it should in theory be alright. I'm not too fussed about the CPU's it's only there because I change between a uni PC and home one with a different number of cores in each but both greater than one. Just tried changing the poison pill part to no avail sadly I wonder whether one of the workers is raising an exception, perhaps due to lack of memory, when there are large number of jobs to process. Another question: why are you distinguishing between easy and hard jobs? Do you actually get a measurable improvement in performance from doing it this way instead of having just a single queue of jobs and a single pool of workers? -- http://mail.python.org/mailman/listinfo/python-list
Re: Get Cliet IP Address
Fred Atkinson fatkin...@mishmash.com (FA) wrote: FAWhat is the function to obtain the client browser's IP FA address? You mean in a web server? The following should work (and was posted by me not long ago): from os import getenv ip = (getenv(HTTP_CLIENT_IP) or getenv(HTTP_X_FORWARDED_FOR) or getenv(HTTP_X_FORWARDED_FOR) or getenv(REMOTE_ADDR) or UNKNOWN) I use getenv() rather than environ[] to avoid exceptions. -- Piet van Oostrum p...@cs.uu.nl URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org -- http://mail.python.org/mailman/listinfo/python-list
Re: cgi script
golu bhardwajjaye...@gmail.com (g) wrote: g Hi, g i started learning cgi few days ago in python and everything went g fine until i started getting the follwing error g g The server encountered an internal error and was unable to complete g your request. Either the server is overloaded or there was an error in g a CGI script. g If you think this is a server error, please contact the webmaster. g i am using apache on xampp. plz help Putting the following in your script might help as it will show the exception trace in your browser (if it gets that far, that is). import cgitb cgitb.enable() -- Piet van Oostrum p...@cs.uu.nl URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org -- http://mail.python.org/mailman/listinfo/python-list
Building / making an application
What is a good way to do this? There are instructions on making modules at: http://docs.python.org/distutils/setupscript.html however, what do you do if you don't want a module? I'm thinking of where I'd like to split the code into several files and have a build / setup script put it together and install it somewhere such as /usr/local/bin. I'm interested in what the standard way of doing this is. Thanks, Pete -- http://www.petezilla.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: socket policy flash help
NighterNet darkne...@gmail.com (N) wrote:
N Here the full code.
N flashpolicy.xml
N [[[
N ?xml version=1.0?
N cross-domain-policy
Nallow-access-from domain=* to-ports=* /
N /cross-domain-policy
N ]]]
N flashpolicytest_server3x.py
N [[[
N #!/usr/local/bin/python
N '''
N Still under testing...
N python version 3.x.x
N '''
N import socket
N import threading
N import sys
N import os
N file_name = 'flashpolicy.xml'
N fh = open(file_name, r)
N policy = fh.read(10001)
You never use that variable.
N host = ''; #out side network
N port = ;
N print (# - Init... - #);
N class ClientThread (threading.Thread):
N global policy;
N allClients = [];
N vlock = threading.Lock();
N id = 0 # next available thread number
N def __init__(self,clientSocket):
N threading.Thread.__init__(self)
N self.sockfd = clientSocket; #socket client
N self.name = '';
N ClientThread.id += 1
N self.id = ClientThread.id
N self.nickName = '';
N self.allClients.append(self.sockfd);
N def sendAll(self,buff):
N for index,clientSock in enumerate(self.allClients):
N try:
N clientSock.send(buff);
There is no guarantee that send will indeed transmit all of buff. It is
better to use clientSock.sendall(buff). Or you should check the return
value of send and check if it is equal to the length of buff. And repeat
if not. (But sendall is easier).
Also don't use ; at the end of the statement. It's not pythonic.
N except (socket.error):
N print ('error socket %s\n',index,| clean);
N clientSock.close()
N del self.allClients[index]
N def run(self):
N while True:
N buff = self.sockfd.recv(1028);
There is no guarantee that recv will get the whole message. It may even
get as little as 1 byte. So you should check the return value of recv.
The official way is to keep reading until you have enough input or until
you hit end of file.
N if not buff:
N print (connect close...(client side));
N self.sockfd.close();
N break #incase it loop infinite
N if str(buff) == str(b\'policy-file-request/\\x00\'):
What you check here is whether buff contains the byte sequence that starts with
a
b, then a ' ... and ending with the 5 bytes \ x 0 0 ' which is wrong.
Actually it should be:
if buff == b\'policy-file-request/\x00':
or
if buff == b\'policy-file-request/\0':
N print ('policy FOUND sending...')
N print(buff)
N b = b'?xml
version=\1.0\?cross-domain-policyallow-access-
N from domain=\*\ to-ports=\*\ //cross-domain-policy'
N print (b)
N self.sockfd.send(b);
N self.sockfd.sendall(b);
Only self.sockfd.sendall; delete the line with self.sockfd.send(b). And
remove the semicolons for esthetical reasons.
N Some odd reason I can't send flash policy from python to flash socket
N to agrees with the connection.
--
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URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4]
Private email: p...@vanoostrum.org
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Re: Building / making an application
On Sun, 2009-08-02 at 20:21 +0100, Peter Chant wrote: What is a good way to do this? There are instructions on making modules at: http://docs.python.org/distutils/setupscript.html however, what do you do if you don't want a module? I'm thinking of where I'd like to split the code into several files and have a build / setup script put it together and install it somewhere such as /usr/local/bin. I'm interested in what the standard way of doing this is. Have you considered creating a deb or rpm package for your application? Most of the documentation for deb or rpm will talk about make files. But even a distutil based python package (with a setup.py) can be made into a deb package. Then the your requirement will be satisfied at least for most gnu/linux based distros. happy hacking. Krishnakant. -- http://mail.python.org/mailman/listinfo/python-list
Re: Building / making an application
Krishnakant wrote: Have you considered creating a deb or rpm package for your application? Most of the documentation for deb or rpm will talk about make files. But even a distutil based python package (with a setup.py) can be made into a deb package. Then the your requirement will be satisfied at least for most gnu/linux based distros. I'm a slacker, so what I would do would be to make a slack build, the slackbuild would take the source and build that. The stage I am at is the how to build the source stage. Don't really intend to get as far as distribution specific packages. What I could do is create a script in the source root directory (that sounds a bit overblown) that simply concatenates together all the python files in the right order and perhaps copies the result to /usr/local/bin or /usr/bin as appropriate. Is that the right way to go? It looks like distutils is appropriate only for modules. OTOH it might be appropriate to put the bulk of an application in a module and have a function calling it the only part of the main script. Pete -- http://www.petezilla.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Building / making an application
Peter Chant schrieb: Krishnakant wrote: Have you considered creating a deb or rpm package for your application? Most of the documentation for deb or rpm will talk about make files. But even a distutil based python package (with a setup.py) can be made into a deb package. Then the your requirement will be satisfied at least for most gnu/linux based distros. I'm a slacker, so what I would do would be to make a slack build, the slackbuild would take the source and build that. The stage I am at is the how to build the source stage. Don't really intend to get as far as distribution specific packages. What I could do is create a script in the source root directory (that sounds a bit overblown) that simply concatenates together all the python files in the right order and perhaps copies the result to /usr/local/bin or /usr/bin as appropriate. Is that the right way to go? It looks like distutils is appropriate only for modules. OTOH it might be appropriate to put the bulk of an application in a module and have a function calling it the only part of the main script. You should consider using setuptools. Then you get an egg that people can install, and you can define console_scripts-entry-points which will be installed into /usr/local/bin or similar locations. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with Regex for domain names
In article mailman.3998.1248989346.8015.python-l...@python.org, MRAB pyt...@mrabarnett.plus.com wrote: Nobody wrote: On Thu, 30 Jul 2009 10:29:09 -0700, rurpy wrote: regex = re.compile(r'[\w\-\.]+\.(?:us|au|de)') You might also want to consider that some country codes such as co for Columbia might match more than you want, for example: re.match(r'[\w\-\.]+\.(?:us|au|de|co)', 'foo.boo.com') will match. ... so put \b at the end, i.e.: regex = re.compile(r'[\w\-\.]+\.(?:us|au|de)\b') It would still match www.bbc.co.uk, so you might need: regex = re.compile(r'[\w\-\.]+\.(?:us|au|de)\b(?!\.\b)') If it's a string containing just the candidate domain, you can do regex = re.compile(r'[\w\-\.]+\.(?:us|au|de)$') -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ Many customs in this life persist because they ease friction and promote productivity as a result of universal agreement, and whether they are precisely the optimal choices is much less important. --Henry Spencer -- http://mail.python.org/mailman/listinfo/python-list
Re: Seeding the rand() Generator
On Sun, 02 Aug 2009 08:53:50 -0700, Scott David Daniels scott.dani...@acm.org wrote: Fred Atkinson wrote: How does one seed the rand() generator when retrieving random recordings in MySQL? It is not entirely clear what you are asking. If you are talking about MySQL's random number generator, you are talking in the wrong newsgroup. If you are talking about Python's, does this work? import random random.seed(123542552) I'm not quite sure how you came to believe that Python controls MySQL, as opposed to using its services. --Scott David Daniels scott.dani...@acm.org I am coding in Python. I am accessing a MySQL database. I have a string to instruct the MySQL database to use the 'rand()' function to randomly choose one of the records in the database. I know how to seed it in PHP. Does anyone know how to see it from with Python? Regards, Fred -- http://mail.python.org/mailman/listinfo/python-list
Re: Predefined Variables
On Sun, 02 Aug 2009 08:11:22 -0700, Scott David Daniels
scott.dani...@acm.org wrote:
Piet van Oostrum wrote:
Scott David Daniels scott.dani...@acm.org (SDD) wrote:
SDD Stephen Cuppett (should have written in this order):
Fred Atkinson fatkin...@mishmash.com wrote ...
Is there a pre-defined variable that returns the GET line...
os.environment('QUERY_STRING')
SDD Maybe you mean:
SDD os.environ['USER']
Let's take the best of both:
os.environ['QUERY_STRING']
Sorry about that. I was testing expression before posting, and I don't
do that much cgi stuff. I forgot to restore the variable name.
--Scott David Daniels
scott.dani...@acm.org
I finally got it to work with x =getenv('QUERY_STRING')
Regards,
Fred
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Re: Processes not exiting
MRAB pyt...@mrabarnett.plus.com (M) wrote: M I wonder whether one of the workers is raising an exception, perhaps due M to lack of memory, when there are large number of jobs to process. But that wouldn't prevent the join. And you would probably get an exception traceback printed. I wonder if something fishy is happening in the multiprocessing infrastructure. Or maybe the Fortran code goes wrong because it has no protection against buffer overruns and similar problems, I think. -- Piet van Oostrum p...@cs.uu.nl URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org -- http://mail.python.org/mailman/listinfo/python-list
Get Cliet IP Address
What is the function to obtain the client browser's IP address? Fred -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing
In 09bf4f17-40a5-4bad-81d3-1950545b7...@g6g2000vbr.googlegroups.com Carl Banks pavlovevide...@gmail.com writes: snip Thanks. Your remarks at least confirm that my impression was not simply due to my noob ignorance: the keyboard-accessible docs are indeed as poor as they look. kynn -- http://mail.python.org/mailman/listinfo/python-list
RE Question
Hi;
How do I search and replace something like this:
aLine = re.sub('[]?[p]?[]?font size=h' + str(x) + '[
a-zA-Z0-9\'=:]*[]?[b]?[]?', 'h' + str(x) + '', aLine)
where RE *only* looks for the possibility of p at the beginning of the
string; that is, not the individual components as I have it coded above, but
the entire 3-character block?
TIA,
Victor
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Re: Is python buffer overflow proof?
On 8/2/2009 10:43 AM, Christian Heimes wrote: Marcus Wanner wrote: I believe that python is buffer overflow proof. In fact, I think that even ctypes is overflow proof... No, ctypes isn't buffer overflow proof. ctypes can break and crash a Python interpreter easily. Christian I see. I thought that it said invalid array index when you try to read/write outside of an array's bounds, though... Marcus -- http://mail.python.org/mailman/listinfo/python-list
Re: Building / making an application
Diez B. Roggisch wrote: You should consider using setuptools. Then you get an egg that people can install, and you can define console_scripts-entry-points which will be installed into /usr/local/bin or similar locations. Interesting, I think I need to have a play with that. The cross platform bit could be useful as well. Pete -- http://www.petezilla.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing
I am a newbie and about a month old with Python. There is a wealth of material about Python and I am really enjoying learning Python. One thing that could have helped Python documentation is that instead of the very raw doc string, it could have used something like PythonDoc (java doc style) so that the functions/classes are documented better. At least I am planning to use PythonDoc for the code that I am going to write. Let me know if there is a better one.. -mohan On Fri, Jul 31, 2009 at 1:10 PM, kj no.em...@please.post wrote: I'm pretty new to Python, and I like a lot overall, but I find the documentation for Python rather poor, overall. I'm sure that Python experts don't have this problem: they have internalized some good ways to access the documentation, are productive with it, and therefore have lost the ability to see why the Python documentations is deficient for beginners. This explains why a suboptimal situation can persist like this: those who are most able fix it are also the least able to perceive it. I've heard similar complaints from other experienced programmers who are trying out Python for the first time: poor documentation. Here is an *entirely typical* example: on some Unix, try % pydoc urllib The displayed documentation mention the optional parameter data in practically every function listed (a few dozen of them). This parameter is not documented *anywhere* on that page. All that we are told is that its default value is always None. I'm sure that I can find a full description of this parameter if I fire up Google, and search online. In fact, more likely than not, I'll find far more documentation than I want. But my point is that a programmer should not need to do this. The full documentation should be readily accessible directly through a few keystrokes. I would love to know how experienced Python programmers quickly zero in on the Python documentation they need. TIA! kynn -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing
On Fri, Jul 31, 2009 at 1:10 PM, kj no.em...@please.post wrote: I'm pretty new to Python, and I like a lot overall, but I find the documentation for Python rather poor, overall. I'm sure that Python experts don't have this problem: they have internalized some good ways to access the documentation, are productive with it, and therefore have lost the ability to see why the Python documentations is deficient for beginners. This explains why a suboptimal situation can persist like this: those who are most able fix it are also the least able to perceive it. I've heard similar complaints from other experienced programmers who are trying out Python for the first time: poor documentation. Here is an *entirely typical* example: on some Unix, try % pydoc urllib The displayed documentation mention the optional parameter data in practically every function listed (a few dozen of them). This parameter is not documented *anywhere* on that page. All that we are told is that its default value is always None. I'm sure that I can find a full description of this parameter if I fire up Google, and search online. In fact, more likely than not, I'll find far more documentation than I want. But my point is that a programmer should not need to do this. The full documentation should be readily accessible directly through a few keystrokes. I would love to know how experienced Python programmers quickly zero in on the Python documentation they need. On Sun, Aug 2, 2009 at 4:22 PM, Mohan Parthasarathysurut...@gmail.com wrote: I am a newbie and about a month old with Python. There is a wealth of material about Python and I am really enjoying learning Python. One thing that could have helped Python documentation is that instead of the very raw doc string, it could have used something like PythonDoc (java doc style) so that the functions/classes are documented better. At least I am planning to use PythonDoc for the code that I am going to write. Let me know if there is a better one.. If you use reStructuredText (http://docutils.sf.net/rst.html), you can leverage Sphinx (http://sphinx.pocoo.org/), which generates the superb-looking official Python docs. Cheers, Chris P.S. Please don't top-post (http://en.wikipedia.org/wiki/Top-post) in the future. -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Seeding the rand() Generator
On Aug 2, 2:18 pm, Fred Atkinson fatkin...@mishmash.com wrote: On Sun, 02 Aug 2009 08:53:50 -0700, Scott David Daniels scott.dani...@acm.org wrote: Fred Atkinson wrote: How does one seed the rand() generator when retrieving random recordings in MySQL? It is not entirely clear what you are asking. If you are talking about MySQL's random number generator, you are talking in the wrong newsgroup. If you are talking about Python's, does this work? import random random.seed(123542552) I'm not quite sure how you came to believe that Python controls MySQL, as opposed to using its services. --Scott David Daniels scott.dani...@acm.org I am coding in Python. I am accessing a MySQL database. I have a string to instruct the MySQL database to use the 'rand()' function to randomly choose one of the records in the database. I know how to seed it in PHP. Does anyone know how to see it from with Python? It sounds like you are using MySQL's rand() function, which means that whatever SQL command you used to seed it in PHP is the same command you would use to seed it in Python. You'll have to give us more information if you want a better answer than that. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing
Mohan Parthasarathy schrieb: I am a newbie and about a month old with Python. There is a wealth of material about Python and I am really enjoying learning Python. One thing that could have helped Python documentation is that instead of the very raw doc string, it could have used something like PythonDoc (java doc style) so that the functions/classes are documented better. At least I am planning to use PythonDoc for the code that I am going to write. Let me know if there is a better one.. Several projects are trying to improve the doc strings with an extended syntax. Personally I prefer the epytext syntax from epydoc [1]. It's a JavaDoc like markup language that extends the raw doc strings with useful information. Christian [1] http://epydoc.sourceforge.net/manual-epytext.html -- http://mail.python.org/mailman/listinfo/python-list
Registation is open for the 9th PyWeek game programming challenge!
The ninth PyWeek challenge will run between: Sunday 30th August to Sunday 6th September (00:00UTC to 00:00UTC) The PyWeek challenge invites entrants to write a game in one week from scratch either as an individual or in a team. Entries must be developed in Python, during the challenge, and must incorporate some theme chosen at the start of the challenge. REGISTRATION IS NOW OPEN -- Visit the challenge website to sign up, join discussions in the message board or read the timetable and rules: http://www.pyweek.org/9/ PLANNING FOR THE CHALLENGE -- Make sure you have working versions of the libraries you're going to use. The rules page has a list of libraries and other resources. Make sure you can build packages to submit as your final submission (if you're going to use py2exe, make sure you know how to use it and that it works). If you don't have access to Linux, Windows or a Mac to test on, contact friends, family or other competitors to find someone who is able to test for you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Skipping a superclass
On Aug 2, 2009, at 5:36 AM, Steven D'Aprano wrote: I have a series of subclasses like this: class A(object): def method(self, *args): print Lots of work gets done here in the base class class B(A): def method(self, *args): print A little bit of work gets done in B super(B, self).method(*args) class C(B): def method(self, *args): print A little bit of work gets done in C super(C, self).method(*args) However, the work done in C.method() makes the work done in B.method() obsolete: I want one to run, or the other, but not both. C does need to inherit from B, for the sake of the other methods, so I want C.method() *only* to skip B while still inheriting from A. (All other methods have to inherit from B as normal.) This might not be applicable to the larger problem you're trying to solve, but for this sample, I would write it as: class A(object): def method(self, *args): self._method(*args) print Lots of work gets done here in the base class def _method(self, *args): pass # or perhaps raise NotImplemented class B(A): def _method(self, *args): print A little bit of work gets done in B class C(B): def _method(self, *args): print A little bit of work gets done in C So what I have done is change the call to super in C to super(B, self) instead of super(C, self). It seems to work, but is this safe to do? Or are there strange side-effects I haven't seen yet? In a diamond-inheritance situation, you may end up skipping methods besides just B.method(). -Miles -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate a new object each time a name is imported
On Aug 3, 4:07 am, Terry Reedy tjre...@udel.edu wrote: Peter Otten wrote: Steven D'Aprano wrote: [...] Fantastic question, answer explanation, guys. Well done. -- http://mail.python.org/mailman/listinfo/python-list
[issue6595] Make Decimal constructor accept all unicode decimal digits in input.
Mark Dickinson dicki...@gmail.com added the comment: Committed to py3k in r74279, release31-maint in r74280. Leaving open for backport to 2.x. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6595 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6595] Make Decimal constructor accept all unicode decimal digits in input.
Mark Dickinson dicki...@gmail.com added the comment: Backported to trunk and release26-maint in r74281 and r74282. -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6595 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6625] UnicodeEncodeError on pydoc's CLI
New submission from Christoph Burgmer cburg...@ira.uka.de: pydoc fails with a UnicodeEncodeError for properly specified Unicode docstrings (u...) on the command line interface. See attached patch that encodes the output with the system's encoding. -- components: Extension Modules files: unicode.patch keywords: patch messages: 91182 nosy: christoph severity: normal status: open title: UnicodeEncodeError on pydoc's CLI versions: Python 2.5, Python 2.6 Added file: http://bugs.python.org/file14626/unicode.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6625 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2053] IDLE - standardize dialogs
Guilherme Polo ggp...@gmail.com added the comment: I have reviewed the latest patch now, it is nice in general but I dislike the idea of increasing even more EditorWindow. I would really prefer to put this somewhere else, like.. idlelib/dialogs.py. Also, I'm inclined to remove this master/parent hiding and continue making it explicit. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2053 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6619] Remove duplicated function in Lib/inspect.py
Mark Dickinson dicki...@gmail.com added the comment: Thanks for the report! Fixed in r74285 (trunk), r74286 (release26-maint), r74287 (py3k) and r74288 (release31-maint). -- nosy: +marketdickinson resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6619 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6604] test_distutils subtest test_get_exe_bytes fails depending on execution order
Tarek Ziadé ziade.ta...@gmail.com added the comment: This was fixed in r71759 and backported in the 2.6 branch in r71765, thanks for the feedback! -- resolution: - wont fix status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6604 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6620] Variable may be used before first being assigned to in Lib/locale.py
Mark Dickinson dicki...@gmail.com added the comment: So this can happen only if grouping is [0] (or an equivalent iterable). Since this is an invalid grouping, I think the appropriate response would be for _grouping_intervals([0]) to raise an exception (which is what it currently does as soon as you iterate over the result, though this is possibly not by design. :) Vincent, does the attached patch (_grouping_intervals.patch, against py3k) silence the pylint warning? -- nosy: +marketdickinson Added file: http://bugs.python.org/file14627/_grouping_intervals.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6620 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2698] Extension module build fails for MinGW: missing vcvarsall.bat
Tarek Ziadé ziade.ta...@gmail.com added the comment: The vcvarsall.bat eror is unrelated to the error James and Eric are mentioned, which is another error fixed in the revision Hagen points. Lenard, could you re-run it under the latest 2.6 version with the global option --verbose please ? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2698 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6555] distutils config file should have the same name on both platforms and all scopes
Tarek Ziadé ziade.ta...@gmail.com added the comment:
The mac/win difference is with the starting dot because it's impossible
under windows to name a file under the directory browser UI that starts
with a .. You have to be a power-user to do so. (pydistutils.cfg
versus .pydistutils.cfg)
Now for pydistutils.cfg vs distutils.cfg I don't know why it's like
that. It should be distutils.cfg everywhere imho. Even if the global
and local one are eventually merged. I'll launch a thread about it on
distutils-sig.
Next, setup.cfg is for the current directory because this how you
operate with packages that have setup.py+setup.cfg files : you chdir in
the directory then run a distutils command.
Last, under windows, it should use os.path.expanduser('~') instead of
looking for a HOME variable. this will be fix in any case.
--
nosy: +exarkun
priority: - normal
resolution: - accepted
type: - behavior
versions: +Python 2.7, Python 3.2
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[issue6622] [RFC] wrong variable used in Lib/poplib.py
Mark Dickinson dicki...@gmail.com added the comment: Comparing with trunk, I agree that it seems very likely that 'password' is intended here. It's unfortunate that the test-suite doesn't expose this bug; it would be good to come up with a test that covers this. -- nosy: +marketdickinson stage: - test needed type: - behavior versions: +Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6622 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6621] [RFC] Remove leftover use of Carbon module from Lib/binhex.py
Mark Dickinson dicki...@gmail.com added the comment: As far as I can tell, it looks safe to just remove these two blocks. There's a third block that should be removed as well (the second if os.name == 'mac': ... in the hexbin function. -- nosy: +marketdickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6621 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6621] [RFC] Remove leftover use of Carbon module from Lib/binhex.py
Mark Dickinson dicki...@gmail.com added the comment: This should be fixed in the 3.1 maintenance branch as well. -- versions: +Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6621 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6621] [RFC] Remove leftover use of Carbon module from Lib/binhex.py
Mark Dickinson dicki...@gmail.com added the comment: See also issue 2715. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6621 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2715] Remove carbon-specific code from binhex
Mark Dickinson dicki...@gmail.com added the comment: This came up again recently in issue 6621. What's the current status of the binhex module in py3k? It looks as though the Carbon-specific code has been *partially* but not completely removed. In particular, there are references to FSSpec remaining, but no FSSpec is imported anywhere. The references to FSSpec are all inside if os.name == 'mac': ... blocks. On my 10.5/Intel and 10.4/PPC systems os.name gives 'posix', so these blocks never get executed. Is it safe to simply remove these blocks? -- nosy: +marketdickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2715 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6621] [RFC] Remove leftover use of Carbon module from Lib/binhex.py
Mark Dickinson dicki...@gmail.com added the comment: Closing as a duplicate of issue 2715. -- resolution: - duplicate status: open - closed superseder: - Remove carbon-specific code from binhex ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6621 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2715] Remove carbon-specific code from binhex
Brett Cannon br...@python.org added the comment: From my understanding the mac platform is OS 9, so that code in those 'if' blocks can go. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2715 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
New submission from Jacob Rus jacobo...@gmail.com: See discussion started right at the end of the month at http://mail.python.org/pipermail/python-dev/2009-July/090928.html And continued at http://mail.python.org/pipermail/python-dev/2009-August/thread.html Basically, the mimetypes module is fragile and very confusing code, built up over years of feature creep without refactoring or careful overall design. I'd like to cut it down to a more manageable code size, fix some bugs, update the included list of mime types, and use some nice Python features of versions 2.2+. Ideally someone reading the module once through would be able to understand what it does. Patches to be attached shortly. -- components: Library (Lib) messages: 91196 nosy: jrus severity: normal status: open title: show Python mimetypes module some love type: behavior versions: Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2053] IDLE - standardize dialogs
Tal Einat talei...@users.sourceforge.net added the comment: The whole point of this patch is to make the EditorWindow's Text widget the default master/parent for its dialogs! IMO this makes sense, since this is a reasonable and intuitive default for such methods of the EditorWindow object. I understand the explicit is better than implicit argument, but that doesn't mean that having a reasonable default value is always wrong. In this case having a default value both simplifies the code considerably and makes sense, so IMO it is justified. Also, please note that the patch actually reduces the size of EditorWindow.py (both character and line counts) and cleans up the code in many places. Yes, the definition of the relevant methods is not trivial, but it is in just one area of the code. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2053 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6627] threading.local() does not work with C-created threads
New submission from Nikolaus Rath nikol...@rath.org: When threads are created by a C extension loaded with ctypes, threading.local() objects are always empty. If one uses _threading_local.local() instead of threading.local(), the problem does not occur. More information and example program showing the behaviour: http://code.google.com/p/fusepy/issues/detail?id=15 -- components: Library (Lib) messages: 91198 nosy: Nikratio severity: normal status: open title: threading.local() does not work with C-created threads type: behavior versions: Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6627 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6608] asctime causing python to crash
James Abbatiello abb...@gmail.com added the comment: Further investigation shows that MS asctime() doesn't like leap seconds and causes an assertion when passing (2008, 12, 31, 23, 59, 60, 2, 366, -1) - 'Wed Dec 31 23:59:60 2008'. Given that and since asctime() is such a simple function I think it makes more sense to roll our own. Attached is a rough patch which does this. It pulls the bounds checking used in strftime() out into its own function so it can be used in both places. Overriding ctime() is necessary because Windows decided to use %02d instead of %3d to print the day of the month. Without overriding ctime() the output of ctime(t) would be different from asctime(localtime(t)) and cause test_conversion() to fail. There is a USE_SYSTEM_ASCTIME switch to decide whether to use the system asctime() or the internal one. -- keywords: +patch Added file: http://bugs.python.org/file14628/asctime.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6608 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
Jacob Rus jacobo...@gmail.com added the comment: This diff should leave the semantics of the module essentially unchanged (including lazy-loading of default files), and also leave the particular MIME types used unchanged, even though these are out of date and should be updated; a subsequent suggested version will address that, perhaps after some discussion. -- keywords: +patch Added file: http://bugs.python.org/file14629/mimetypes-2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2715] Remove carbon-specific code from binhex
Mark Dickinson dicki...@gmail.com added the comment: Thanks, Brett. I've removed those blocks in r74289 (py3k) and r74290 (release31-maint). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2715 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2715] Remove carbon-specific code from binhex
Mark Dickinson dicki...@gmail.com added the comment: It looks to me as though this issue can now be closed. Ronald, any comments? -- status: open - pending ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2715 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
Jacob Rus jacobo...@gmail.com added the comment: Here is a version of the patch which does away with the lazy loading: these are a small handful of easy-to-parse ~40k files; if the import takes an extra eye-blink, it shouldn't be too big a deal. -- Added file: http://bugs.python.org/file14630/mimetypes3.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
Jacob Rus jacobo...@gmail.com added the comment: A fixed version of the patch from msg91200, 2009-08-02 20:08 -- Added file: http://bugs.python.org/file14631/mimetypes2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
Jacob Rus jacobo...@gmail.com added the comment: This version (#4) switches to expressing the default types as a list of tuples instead of as a dict, so that we can include duplicate rows so that reverse type - extension lookups will behave properly, once we start changing the actual content of the defaults. The types_map and common_types dictionaries (aliases to the singleton MimeTypes object's types_map property) have been left behaving as before for backwards compatibility. The tests still pass. -- Added file: http://bugs.python.org/file14632/mimetypes4.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2053] IDLE - standardize dialogs
Guilherme Polo ggp...@gmail.com added the comment: I thought the main point of this issue was to define standard functions, methods, classes (or something in that sense), in order to make the creation of tk dialogs uniform across IDLE. Right now it seems reasonable to keep the parent hidden, but I think it may not help much for maintaining. I really consider a good idea to define explicitly who is the parent of a dialog, it wasn't an attempt to refer to the phrase you cited. I trust you it reduces the size on that file, I really didn't count how many lines were removed and how many were added, but these dialogs can be used anywhere around IDLE so I don't see why keeping them inside EditorWindow is a good idea. It would reduce even more (some few lines) EditorWindow's size doing so, and it would make more sense as I see. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2053 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6616] PyList_APPEND (append without incref)
Raymond Hettinger rhettin...@users.sourceforge.net added the comment: I know the API well enough (with manipulating dicts/lists etc) and I still want this function for the sake of convenience. Given that your level of skill is higher than the average user, I recommend adding this to your own standard libraries or headers. No need to muck-up the environment for everyone else. -- assignee: - rhettinger resolution: - rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6616 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6626] show Python mimetypes module some love
Jacob Rus jacobo...@gmail.com added the comment: Here is a list I generated of all the current Apache mime.types: I would just as soon include this in the python standard library, either just the Apache file as is, or even these python object literals (maybe in a file outside of mimetypes.py), and then *not* import from Apache files by default, to cut down on external dependencies. There are several alternate MIME types for various types that should be added to this list (in earlier positions so they only are used in the type - extension map). The only issue is that some users may have added to their Apache mime.types files for the sake of getting mailman or other python programs to do what they want. So I'm not entirely sure to what extent we should be 100% backwards compatible in such edge cases. My personal opinion is that the 'strict' option is unnecessary and should be set to do nothing, because users are more likely to want the predictable behavior where an unorthodox type gives back the proper extension, than the behavior where their code fails unless they pass a flag in: I don't see any reason for a user to want a 'type doesn't exist' message back for non-registered types. This isn't a test for IANA registration module. -- Added file: http://bugs.python.org/file14633/apache_mimetypes.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6626 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1628205] socket.readline() interface doesn't handle EINTR properly
Rhett Garber rhe...@gmail.com added the comment: I've hit this issue as well. Attached is an updated patch to 2.6 branch and a test case. I wrote up more details here: http://nullhole.com/2009/08/02/anatomy-of-a-regression-test/ -- nosy: +rhettg Added file: http://bugs.python.org/file14634/diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1628205 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6628] IDLE freezes after encountering a syntax error
New submission from brian omniscient.br...@gmail.com: Running Python 3.1/ IDLE, which was installed on top of a Python 2.5.4 install, Mac OSX 10.4 This seems like such an obvious bug, but I can't find it in the current list of issues - so I suspect that it may not be reproducible on other computers, but it's certainly reproducible on my laptop. If I run a module with (any?) syntax error (for example, for i in range(10) #missing semicolon print i the interpreter will catch it and send you to fix it. Then, any subsequent attempts to run that same module will freeze IDLE. The problem doesn't occur if you run a different module. -- components: IDLE messages: 91210 nosy: brian89 severity: normal status: open title: IDLE freezes after encountering a syntax error type: crash versions: Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6628 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
